H. C. McNeile 
Bulldog Drummond [EPUB ebook] 

Bulldog Drummond was the first Bulldog Drummond novel. It was published in 1920 and written by
H. C. Mc Neile under the pen name
Sapper . The following year it was adapted into a play of the same title starring Gerald du Maurier. In 1929, the book was adapted into a film of the same name starring Ronald Coleman.
Herman Cyril Mc Neile  (28 September 1888 – 14 August 1937), commonly known as Cyril Mc Neile and publishing under the name
H. C. Mc Neile or the pseudonym Sapper, was a British soldier and author. Drawing on his experiences in the trenches during the
First World War , he started writing short stories and getting them published in the Daily Mail. As serving officers in the British Army were not permitted to publish under their own names, he was given the pen name ‘Sapper’ by Lord Northcliffe, the owner of the Daily Mail; the nickname was based on that of his corps, the Royal Engineers.